Human Population - APES Flashcards

Factors that effect human population size

7100155935	Age structure diagram	Horizontal bar graph of a population divided into groups by age and gender.	0
7100155936	Birth rate	The rate at which births occur in a population, measured as the percentage of births compared with the total population in a year.	1
7100155937	Death rate	The rate at which deaths occur in a population, measured as the percentage of a population dying compared with the total population in a year.	2
7100155938	Demographic transition	The pattern of change in birth and death rates as a country is transformed from undeveloped to developed.	3
7100155939	Growth rate	The net increase of some factor per unit time. It is sometimes measured as the increase in numbers of individuals or biomass per unit time and sometimes as a percentage increase in numbers or biomass per unit time.	4
7100155940	Human carrying capacity	The maximum number of human beings which can live on Earth at the same time; is dependent on the quality of life people desire and are willing to accept	5
7100155941	Life expectancy	The estimated average number of years (or other time period used as a measure) that an individual of a specific age can expect to live	6
7100155942	Zero population growth (ZPG)	The number of births equals the number of deaths so that there is no net change in the size of the population	7
7100155943	Demography	The study of populations, especially their patterns in space and time	8
7100155944	Replacement level fertility	Fertility rate required for a population to remain a constant level	9
7100155945	Total fertility rate (TFR)	The average number of children expected to be born to a woman during her lifetime	10
7100155946	Crude birth rate	The number of live births per 1,000 people in a population, in a given year.	11
7100155947	Crude death rate	The number of deaths per 1,000 people in a population, in a given year.	12
7100155948	Infant mortality rate (IMR)	The number of deaths of infants under 1 year old per 1,000 live births.	13